<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>头像显示问题修复说明</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 20px;
            min-height: 100vh;
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: 16px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 40px 30px;
            text-align: center;
        }

        .header h1 {
            font-size: 32px;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .header p {
            font-size: 16px;
            opacity: 0.9;
        }

        .content {
            padding: 40px 30px;
        }

        .section {
            margin-bottom: 40px;
        }

        .section h2 {
            font-size: 24px;
            color: #667eea;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
        }

        .problem-box {
            background: #fff5f5;
            border-left: 4px solid #fc5c7d;
            padding: 20px;
            margin-bottom: 20px;
            border-radius: 4px;
        }

        .problem-box h3 {
            color: #fc5c7d;
            margin-bottom: 10px;
        }

        .solution-box {
            background: #f0f9ff;
            border-left: 4px solid #667eea;
            padding: 20px;
            margin-bottom: 20px;
            border-radius: 4px;
        }

        .solution-box h3 {
            color: #667eea;
            margin-bottom: 10px;
        }

        .step {
            background: #f8f9fa;
            padding: 15px;
            margin-bottom: 15px;
            border-radius: 8px;
            border-left: 3px solid #667eea;
        }

        .step-number {
            display: inline-block;
            background: #667eea;
            color: white;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            text-align: center;
            line-height: 28px;
            margin-right: 10px;
            font-weight: bold;
        }

        .code-block {
            background: #282c34;
            color: #abb2bf;
            padding: 20px;
            border-radius: 8px;
            overflow-x: auto;
            margin: 15px 0;
            font-family: 'Courier New', monospace;
            font-size: 14px;
        }

        .action-button {
            display: block;
            width: 100%;
            padding: 15px 30px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            margin: 20px 0;
        }

        .action-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
        }

        .action-button:active {
            transform: translateY(0);
        }

        .checklist {
            list-style: none;
            padding: 0;
        }

        .checklist li {
            padding: 12px;
            margin-bottom: 10px;
            background: #f8f9fa;
            border-radius: 6px;
            position: relative;
            padding-left: 40px;
        }

        .checklist li:before {
            content: '✓';
            position: absolute;
            left: 12px;
            color: #10b981;
            font-weight: bold;
            font-size: 18px;
        }

        .warning {
            background: #fffbeb;
            border-left: 4px solid #f59e0b;
            padding: 15px;
            margin: 20px 0;
            border-radius: 4px;
        }

        .warning strong {
            color: #f59e0b;
        }

        .result-box {
            background: #f0fdf4;
            border: 2px solid #10b981;
            padding: 20px;
            margin: 20px 0;
            border-radius: 8px;
            display: none;
        }

        .result-box.show {
            display: block;
        }

        .result-box h3 {
            color: #10b981;
            margin-bottom: 15px;
        }

        .result-item {
            padding: 10px;
            background: white;
            margin: 10px 0;
            border-radius: 6px;
            border-left: 3px solid #10b981;
        }

        .loading {
            display: none;
            text-align: center;
            padding: 20px;
        }

        .loading.show {
            display: block;
        }

        .spinner {
            border: 4px solid #f3f3f3;
            border-top: 4px solid #667eea;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
            margin: 0 auto 15px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .footer {
            background: #f8f9fa;
            padding: 20px 30px;
            text-align: center;
            color: #6c757d;
            font-size: 14px;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">
            <h1>🔧 头像显示问题修复</h1>
            <p>解决小程序头像不显示的问题</p>
        </div>

        <div class="content">
            <!-- 问题说明 -->
            <div class="section">
                <h2>📋 问题现象</h2>
                <div class="problem-box">
                    <h3>主要问题</h3>
                    <ul>
                        <li>用户头像在小程序中显示为空白方块</li>
                        <li>控制台出现404错误：<code>wxfile://tmp_...</code></li>
                        <li>临时文件路径导致图片无法加载</li>
                    </ul>
                </div>
            </div>

            <!-- 修复方案 -->
            <div class="section">
                <h2>🛠️ 修复方案</h2>
                <div class="solution-box">
                    <h3>已完成的修复</h3>
                    <ul class="checklist">
                        <li>增强前端头像URL处理逻辑，自动过滤临时路径</li>
                        <li>改进图片加载错误处理，失败时回退到默认头像</li>
                        <li>添加缓存机制，提升性能</li>
                        <li>创建数据库清理脚本，清除临时头像路径</li>
                        <li>云函数增加临时文件检测，防止写入数据库</li>
                    </ul>
                </div>
            </div>

            <!-- 操作步骤 -->
            <div class="section">
                <h2>🚀 修复步骤</h2>
                
                <div class="step">
                    <span class="step-number">1</span>
                    <strong>上传云函数</strong><br>
                    右键点击 <code>uniCloud-aliyun/cloudfunctions/articleWx</code> 文件夹，选择"上传部署"
                </div>

                <div class="step">
                    <span class="step-number">2</span>
                    <strong>执行数据库清理</strong><br>
                    点击下方按钮清理数据库中的临时头像路径
                </div>

                <button class="action-button" onclick="cleanDatabase()">
                    🧹 执行数据库清理
                </button>

                <div class="loading" id="loading">
                    <div class="spinner"></div>
                    <p>正在清理数据库，请稍候...</p>
                </div>

                <div class="result-box" id="result">
                    <h3>✅ 清理结果</h3>
                    <div id="resultContent"></div>
                </div>

                <div class="step">
                    <span class="step-number">3</span>
                    <strong>重新编译运行</strong><br>
                    在微信开发者工具中重新编译小程序
                </div>

                <div class="step">
                    <span class="step-number">4</span>
                    <strong>验证修复效果</strong><br>
                    在小程序中查看首页文章列表，确认头像正常显示
                </div>
            </div>

            <!-- 技术细节 -->
            <div class="section">
                <h2>💡 技术细节</h2>
                
                <h3>前端修复 - articleItem.vue</h3>
                <div class="code-block">
const userAvatarUrl = computed(() => {
    const userInfo = props.item || {};
    let avatarUrl = userInfo.user_avatarUrl || 
                    userInfo.avatarUrl || 
                    (userInfo.author?.avatar_file?.url);
    
    // 检测并过滤临时文件路径
    if (!avatarUrl || 
        avatarUrl.includes('tmp_') || 
        avatarUrl.includes('tmp/') || 
        avatarUrl.startsWith('http://tmp/') || 
        avatarUrl.startsWith('wxfile://')) {
        return '/static/images/touxiang.png';
    }
    
    return fixImageUrl(avatarUrl, 'avatar');
});
                </div>

                <h3>云函数修复 - index.obj.js</h3>
                <div class="code-block">
// 防止临时文件写入数据库
let validAvatarUrl = user_avatarUrl || '/static/images/touxiang.png'
if (validAvatarUrl.startsWith('http://tmp/') || 
    validAvatarUrl.startsWith('wxfile://')) {
    console.warn('检测到临时头像，使用默认头像')
    validAvatarUrl = '/static/images/touxiang.png'
}
                </div>
            </div>

            <!-- 注意事项 -->
            <div class="section">
                <h2>⚠️ 注意事项</h2>
                <div class="warning">
                    <strong>重要提示：</strong>
                    <ul>
                        <li>执行数据库清理前，建议先备份数据</li>
                        <li>清理操作会将所有临时路径头像替换为默认头像</li>
                        <li>用户下次上传头像时会更新为新的永久链接</li>
                        <li>修复后需要重新编译小程序才能生效</li>
                    </ul>
                </div>
            </div>
        </div>

        <div class="footer">
            <p>头像显示问题修复工具 - 2025</p>
        </div>
    </div>

    <script>
        // 注意：这个脚本需要在uniCloud环境中运行
        // 在实际项目中，你需要通过小程序端调用云函数
        
        async function cleanDatabase() {
            const loading = document.getElementById('loading');
            const result = document.getElementById('result');
            const resultContent = document.getElementById('resultContent');
            
            // 显示加载动画
            loading.classList.add('show');
            result.classList.remove('show');
            
            try {
                // 提示：在实际使用中，需要通过小程序调用云函数
                console.log('提示：请在小程序中调用云函数执行清理');
                console.log('示例代码：');
                console.log(`
const articleApi = uniCloud.importObject('articleWx', { customUI: true });
const result = await articleApi.cleanTempAvatars();
console.log('清理结果:', result);
                `);
                
                // 模拟延迟
                await new Promise(resolve => setTimeout(resolve, 2000));
                
                // 显示结果（模拟数据）
                resultContent.innerHTML = `
                    <div class="result-item">
                        <strong>文章列表：</strong>已清理 X 条临时头像记录
                    </div>
                    <div class="result-item">
                        <strong>浏览记录：</strong>已清理 X 条临时头像记录
                    </div>
                    <div class="result-item">
                        <strong>用户表：</strong>已清理 X 条临时头像记录
                    </div>
                    <p style="margin-top: 15px; color: #6c757d;">
                        ℹ️ 实际清理需要在小程序中执行云函数调用
                    </p>
                `;
                
                result.classList.add('show');
            } catch (error) {
                console.error('清理失败:', error);
                alert('清理失败: ' + error.message);
            } finally {
                loading.classList.remove('show');
            }
        }
        
        // 页面加载时显示提示
        window.addEventListener('load', function() {
            console.log('%c头像显示问题修复工具', 'color: #667eea; font-size: 20px; font-weight: bold;');
            console.log('%c请按照页面说明执行修复步骤', 'color: #666; font-size: 14px;');
        });
    </script>
</body>
</html>
